제출 #7789

#제출 시각아이디문제언어결과실행 시간메모리
7789IohcEjnim다각형 (GA5_polygon)C++98
0 / 100
0 ms1088 KiB
#include <stdio.h>

int main()
{
  int a, b;
  long long ans = 0;
  scanf("%d %d", &a, &b);
  a = a/2*2;
  if (a <= 2) a = 4;
  b = b/2*2;
  for (; a <= b; a+=2)
  {
    ans += a;
  }
  printf("%lld", ans);
  return 0;
}
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